diff --git a/config/compilerFlags.cmake b/config/compilerFlags.cmake
index 51cb6442..45bc7dfb 100644
--- a/config/compilerFlags.cmake
+++ b/config/compilerFlags.cmake
@@ -12,10 +12,6 @@ if ( MINGW OR UNIX ) # MINGW, Linux, APPLE, CYGWIN
 
         if ( CYGWIN OR (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 5.0))
             set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++98") # to support snprintf
-            # We also fall in this case for apple-clang
-            if (EXIV2_ENABLE_EXTERNAL_XMP AND APPLE)
-                set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libstdc++ -fvisibility=hidden -fvisibility-inlines-hidden")
-            endif()
         else()
             set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++98")
         endif()